Our Elantra Hyundai workshop manuals contain in-depth maintenance, service and repair information. Get your eManual now!. Some of the popular Hyundai models include the Elantra, Accent, and Sonata. The Sonata is a four-door sedan that went into production in 1985 and is sold in many countries around the world. Hyundai is also involved in motorsport, and in particular the World Rally Championship..